Flights to Koh Samui from Port Angeles

Popular airlines from Port Angeles to Koh Samui

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Port Angeles (SEA) to Koh Samui (USM)

Prices were available within the past 7 days and start at for one-way flights and ฿22,945 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 31 Jul - Thu, 14 Aug
SEA
Seattle
USM
Koh Samui
฿22,945 Return, found 18 hours ago
฿22,945
Return
found 18 hours ago
Select United flight, departing Thu, 31 Jul from Seattle to Koh Samui, returning Thu, 14 Aug, priced at ฿22,945 found 18 hours ago
United
Thu, 31 Jul - Thu, 14 Aug
SEA
Seattle
USM
Koh Samui
฿26,015 Return, found 18 hours ago
฿26,015
Return
found 18 hours ago
Select United flight, departing Thu, 31 Jul from Seattle to Koh Samui, returning Thu, 14 Aug, priced at ฿26,015 found 18 hours ago
United
Sun, 15 Feb - Sat, 21 Feb
SEA
Seattle
USM
Koh Samui
฿28,780 Return, found 17 hours ago
฿28,780
Return
found 17 hours ago
Select United flight, departing Sun, 15 Feb from Seattle to Koh Samui, returning Sat, 21 Feb, priced at ฿28,780 found 17 hours ago
United
Fri, 18 Jul - Fri, 25 Jul
SEA
Seattle
USM
Koh Samui
฿29,035 Return, found 5 hours ago
฿29,035
Return
found 5 hours ago
Select United flight, departing Fri, 18 Jul from Seattle to Koh Samui, returning Fri, 25 Jul, priced at ฿29,035 found 5 hours ago
United
Fri, 18 Jul - Fri, 25 Jul
SEA
Seattle
USM
Koh Samui
฿29,660 Return, found 5 hours ago
฿29,660
Return
found 5 hours ago
Select United flight, departing Fri, 18 Jul from Seattle to Koh Samui, returning Fri, 25 Jul, priced at ฿29,660 found 5 hours ago
United
Fri, 18 Jul - Fri, 25 Jul
SEA
Seattle
USM
Koh Samui
฿33,115 Return, found 5 hours ago
฿33,115
Return
found 5 hours ago
Select United flight, departing Fri, 18 Jul from Seattle to Koh Samui, returning Fri, 25 Jul, priced at ฿33,115 found 5 hours ago
United
Fri, 18 Jul - Fri, 25 Jul
SEA
Seattle
USM
Koh Samui
฿33,740 Return, found 5 hours ago
฿33,740
Return
found 5 hours ago
Select United flight, departing Fri, 18 Jul from Seattle to Koh Samui, returning Fri, 25 Jul, priced at ฿33,740 found 5 hours ago
EVA Airways
Sun, 15 Feb - Sat, 21 Feb
SEA
Seattle
USM
Koh Samui
฿41,215 Return, found 17 hours ago
฿41,215
Return
found 17 hours ago
Select EVA Airways flight, departing Sun, 15 Feb from Seattle to Koh Samui, returning Sat, 21 Feb, priced at ฿41,215 found 17 hours ago
Qatar Airways
Sun, 15 Feb - Sat, 21 Feb
SEA
Seattle
USM
Koh Samui
฿49,440 Return, found 17 hours ago
฿49,440
Return
found 17 hours ago
Select Qatar Airways flight, departing Sun, 15 Feb from Seattle to Koh Samui, returning Sat, 21 Feb, priced at ฿49,440 found 17 hours ago
Cathay Pacific
Fri, 18 Jul - Fri, 25 Jul
SEA
Seattle
USM
Koh Samui
฿82,290 Return, found 5 hours ago
฿82,290
Return
found 5 hours ago
Select Cathay Pacific flight, departing Fri, 18 Jul from Seattle to Koh Samui, returning Fri, 25 Jul, priced at ฿82,290 found 5 hours ago
British Airways
Thu, 31 Jul - Thu, 14 Aug
SEA
Seattle
USM
Koh Samui
฿93,270 Return, found 18 hours ago
฿93,270
Return
found 18 hours ago
Select British Airways flight, departing Thu, 31 Jul from Seattle to Koh Samui, returning Thu, 14 Aug, priced at ฿93,270 found 18 hours ago
KLM
Sun, 15 Feb - Sat, 21 Feb
SEA
Seattle
USM
Koh Samui
฿107,330 Return, found 17 hours ago
฿107,330
Return
found 17 hours ago
Select KLM flight, departing Sun, 15 Feb from Seattle to Koh Samui, returning Sat, 21 Feb, priced at ฿107,330 found 17 hours ago
*Available to Expedia members.